Here are some settings to speed up the transmission rate through your OpenVPN tunnel: proto udp; mssfix 0; fragment 0; mssfix: Even though MSS itself is a TCP feature, this OpenVPN option targets encapsulated UDP packets. It will change the MSS value of the TCP protocol inside the tunnel in such a way that after UDP encryption/encapsulation, the resulting UDP packet size (minus IP/UDP headers
Dec 15, 2018 [NGFW-6400] Openvpn MTU options - Untangle The --mssfix option only makes sense when you are using the UDP protocol for OpenVPN peer-to-peer communication, i.e. --proto udp. --mssfix and --fragment can be ideally used together, where --mssfix will try to keep TCP from needing packet fragmentation in the first place, and if big packets come through anyhow (from protocols other than TCP What is wrong with my OpenVPN server setup? : homelab On the client side as well, I have also set mssfix 1350 in my .ovpn file. [0:0] # Allow traffic from OpenVPN client to ens3 (change to the interface you discovered!) -A POSTROUTING -s 10.8.0.0/8 -o ens3 -j MASQUERADE COMMIT # END OPENVPN RULES sysctl net.ipv4.ip_forward. [SOLVED] openvpn doesn't work - Linux Forum - Spiceworks Aug 07, 2015
OpenVPN / Re: [Openvpn-users] Wrong warning about mssfix
Implement --mssfix handling for IPv6 packets. · OpenVPN OpenVPN is an open source VPN daemon. Contribute to OpenVPN/openvpn development by creating an account on GitHub. Rename process_ipv4_header() to process_ip_header() and PIPV4_MSSFIX flag to PIP_MSSFIX, to make visible that it's no longer IPv4-only.
Configuring a Windows OpenVPN client or server – Opengear
#593 (mssfix code is slow) – OpenVPN Community